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author | Gopinath <gelanchezhian@google.com> | 2016-08-23 20:16:19 -0700 |
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committer | Gopinath <gelanchezhian@google.com> | 2016-08-29 10:35:22 -0700 |
commit | 829d4621f128e3637cda21c4658ce40746158eda (patch) | |
tree | 01495e6d11f016d556323280abe52356db3bd174 /src/com/android/loganalysis/parser/EventsLogParser.java | |
parent | 8438477ac7130f93f9a3f7e1229147b3d92c9663 (diff) | |
download | loganalysis-829d4621f128e3637cda21c4658ce40746158eda.tar.gz |
Events logcat parser
Parse the transition delay items from the events log.
Bug 28793299
Test Status : 7 tests passed
Change-Id: Idd300c4baa0282244b285ce78e1b865ff3522c0d
Diffstat (limited to 'src/com/android/loganalysis/parser/EventsLogParser.java')
-rw-r--r-- | src/com/android/loganalysis/parser/EventsLogParser.java | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/com/android/loganalysis/parser/EventsLogParser.java b/src/com/android/loganalysis/parser/EventsLogParser.java new file mode 100644 index 0000000..068feeb --- /dev/null +++ b/src/com/android/loganalysis/parser/EventsLogParser.java @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.loganalysis.parser; + +import com.android.loganalysis.item.IItem; +import com.android.loganalysis.item.TransitionDelayItem; + +import java.io.IOException; +import java.io.BufferedReader; +import java.util.ArrayList; +import java.util.List; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * Parse the events logs. </p> + */ +public class EventsLogParser implements IParser { + + // 08-21 17:53:53.876 1053 2135 I am_restart_activity: + // [0,188098346,127,com.google.android.gm/.ConversationListActivityGmail] + private static final Pattern ACTIVITY_RESTART = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:\\d{2}" + + ":\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I am_restart_activity: " + + "\\[\\d+\\,\\d+\\,\\d+\\,(?<componentname>.*)\\]$"); + // 08-21 17:57:15.363 1053 2095 I am_resume_activity: + // [0,228277756,132,com.google.android.gm/.ConversationListActivityGmail] + private static final Pattern ACTIVITY_RESUME = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:\\d{2}" + + ":\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I am_resume_activity: " + + "\\[\\d+\\,\\d+\\,\\d+\\,(?<componentname>.*)\\]$"); + // 08-21 17:53:53.893 1053 1115 I sysui_action: [321,74] + private static final Pattern STARTING_WINDOW_DELAY = Pattern.compile("^\\d{2}-\\d{2} \\d{2}:" + + "\\d{2}:\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I sysui_action: \\[321,(?<startdelay>.*)\\]$"); + // 08-21 17:54:16.672 1053 1115 I sysui_action: [319,99] + private static final Pattern TRANSITION_DELAY = Pattern + .compile("^\\d{2}-\\d{2} \\d{2}:" + + "\\d{2}:\\d{2}.\\d{3}\\s+\\d+\\s+\\d+ I sysui_action: \\[319," + + "(?<transitdelay>.*)\\]$"); + + @Override + public IItem parse(List<String> lines) { + throw new UnsupportedOperationException("Method has not been implemented in lieu" + + " of others"); + } + + /** + * Method to parse the transition delay information from the events log + * + * @param input + * @return + * @throws IOException + */ + public List<TransitionDelayItem> parseTransitionDelayInfo(BufferedReader input) + throws IOException { + List<TransitionDelayItem> transitionDelayItems = new ArrayList<TransitionDelayItem>(); + String line; + List<String> componentNameStack = new ArrayList<String>(); + boolean isRecentStartWindowDelay = false; + while ((line = input.readLine()) != null) { + Matcher match = null; + if (((match = matches(ACTIVITY_RESTART, line))) != null || + ((match = matches(ACTIVITY_RESUME, line)) != null)) { + componentNameStack.add(match.group("componentname")); + isRecentStartWindowDelay = false; + } else if (((match = matches(STARTING_WINDOW_DELAY, line)) != null) + && (componentNameStack.size() > 0)) { + TransitionDelayItem delayItem = new TransitionDelayItem(); + delayItem.setComponentName( + componentNameStack.remove(componentNameStack.size() - 1)); + delayItem.setStartingWindowDelay(Long.parseLong(match.group("startdelay"))); + delayItem.setTransitionDelay(-1); + transitionDelayItems.add(delayItem); + isRecentStartWindowDelay = true; + } else if (((match = matches(TRANSITION_DELAY, line)) != null) + && (componentNameStack.size() > 0) && !isRecentStartWindowDelay) { + TransitionDelayItem delayItem = new TransitionDelayItem(); + delayItem.setComponentName( + componentNameStack.remove(componentNameStack.size() - 1)); + delayItem.setTransitionDelay(Long.parseLong(match.group("transitdelay"))); + delayItem.setStartingWindowDelay(-1); + transitionDelayItems.add(delayItem); + } + } + return transitionDelayItems; + } + + /** + * Checks whether {@code line} matches the given {@link Pattern}. + * + * @return The resulting {@link Matcher} obtained by matching the {@code line} against + * {@code pattern}, or null if the {@code line} does not match. + */ + private static Matcher matches(Pattern pattern, String line) { + Matcher ret = pattern.matcher(line); + return ret.matches() ? ret : null; + } + +} |